JPH08317841A - Defogging mirror - Google Patents

Abstract

PURPOSE: To fit and replace the mirror itself of a defogging mirror independently from the electric work and expand the width of selection for the shape and size of the mirror to be installed. CONSTITUTION: A mirror 2 and a heater unit 3 provided with a planar heater 5 are separately provided, and the mirror 2 and the heater unit 3 are fixed on an installation skeleton 1 and integrated with it while the heater unit 3 is kept in contact with the back face of the mirror 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-fog mirror. More specifically, the present invention makes it possible to independently mount and replace the mirror itself, regardless of electrical work, and to expand the range of choices for the shape and size of the mirror to be installed. It is about a cloudy mirror.

[0002]

2. Description of the Related Art Since hot water is used in a bathroom (a) or a washroom shown in FIG. 9 of a house or the like, dew condensation occurs on the surface of a mirror (a) used here. Water droplets are often attached. In order to prevent such dew condensation on the mirror surface and to use the mirror (a) in a good condition, an anti-fog mirror has been conventionally provided.

This anti-fog mirror is shown in FIG.
As shown in (a), an electric heater (c) is provided on the back surface of the mirror (b), and the electric heater (c) heats the mirror (b) to prevent the occurrence of dew condensation. It is known that water drops disappear even if dew condensation occurs. In such an anti-fog mirror, the mirror (a) and the electric heater (c) are usually bonded and integrated. When installing the anti-fog mirror in a predetermined area such as the bathroom (a) and washroom shown in FIG. 9, connect the lead wire (e) extending from the terminal box (d) to the indoor lead-in wire (f) and the crimp terminal ( G), and then caulking agent (K) is injected and fixed along the outer periphery of the mirror (A) as shown in FIG.

[0004]

However, in the conventional anti-fog mirror as shown in FIG. 10 (a), for example, since the mirror (a) and the electric heater (c) are integrated, It had the following drawbacks. That is, FIG.
It is legally obligatory that a qualified person with specialized knowledge of electrical work must carry out the wiring work for the lead wire (e) and indoor lead-in wiring (f) as shown in 0 (b). Therefore, an unqualified person cannot install the mirror (a) with such a wiring work. The contractor's restriction on this installation is mirror (a)
This is also the case when the is damaged after installation and is replaced. When replacing the mirror (a), the electric circuit is cut after releasing the fixation of the mirror (a), and the electric circuit of the electric heater (c) integrated with the new mirror (a) is connected to the mirror (a). To install the mirror, if there is no qualified person for electrical work in the absence (a)
Cannot be exchanged.

Further, since the anti-fog mirror is manufactured in a factory by integrating the mirror (a) and the electric heater (c), the degree of completion of parts is high, and the shape and size of the mirror (a) are high. There was a problem that there are limited variations.
This problem also affects the change of the mirror (a), and the range of selection of the shape, size, etc. of the mirror (a) lacks flexibility.

The present invention has been made in view of the above circumstances, solves the drawbacks of the conventional anti-fog mirrors, and enables independent construction without attaching or replacing the mirrors themselves to electrical work. In addition to the above, it is an object of the present invention to provide an anti-fog mirror capable of expanding the range of choices such as the shape and size of the mirror to be installed.

[0007]

In order to solve the above-mentioned problems, the present invention provides a heater unit having a mirror and a sheet heater as separate bodies, and the heater unit contacts the back surface of the mirror. Provided is an anti-fog mirror characterized in that these mirror and heater unit are fixed on the installation frame and integrated with the installation frame.

[0008]

[Operation] In the anti-fog mirror of the present invention, the heater unit including the mirror and the sheet heater is provided as a separate body, and the mirror and the heater unit are installed while the heater unit contacts the back surface of the mirror. Since it is fixed on the top and integrated with the installation frame, the installation and replacement of the mirror itself is independent of electrical work, and independent work is possible. The restrictions on the shape and size of the mirror to be installed are eliminated,
The selection range is expanded.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below with reference to the drawings, and the anti-fog mirror of the present invention will be described in more detail. FIG. 1 is an exploded sectional view showing an embodiment of the anti-fog mirror of the present invention. For example, in the example of FIG. 1, the mirror (2) fixed on the installation frame (1) and the heater unit (3) are separately provided.

A lead-in wiring (4) such as a VA cable is drawn out through the inside of the installation frame (1) toward the installation surface side of the heater unit (3). On the other hand, the heater unit (3) is provided with a planar heater (5), and a soaking plate (6) is integrally attached to the surface thereof. A direct connection terminal box (7) is provided on the back surface of the sheet heater (5). This direct connection terminal box (7)
The lead-in wiring (4) is connected to and the electric power is supplied to the planar heater (5). Further, a contact member (8) as described later is attached to a fixed portion of the back surface of the heater unit (3) to the installation frame (1).

The installation frame (1) is also provided with a notch (9) for accommodating the lead-in wiring (4) after being connected to the direct connection terminal box (7). <A in FIG.
>, <B> and <c> are process cross-sectional views showing the procedure of constructing the anti-fog mirror illustrated in FIG. 1 along the process. As shown in FIG. 2 <a>, the lead-in wiring (4) drawn in advance to the notch (9) of the installation frame (1) is connected to the direct connection terminal box (7) of the heater unit (3).

Next, as shown in FIG. 2B, after the mirror holding fixtures (10) are mounted above and below the surface of the installation frame (1), the heater unit (3) is placed on the installation frame (1). Fix it. Then, the mirror (2) is fixed to the mirror holding fixture (10).
And the heater unit (3) so that it is sandwiched between them. Then, as shown in FIG. 2C, the heater unit (3) is fixed on the installation frame while the heater unit (3) is in contact with the back surface of the mirror (2). Integrated with the body (1).

As described above, the mounting of the mirror (2) itself has no relation to the wiring work for connecting the lead-in wiring (4) to the direct connection terminal box (7), so that it is an independent construction. Even a person who is not qualified for electrical work can attach the mirror (2), and the restriction on construction is eliminated. This point is the same when the mirror (2) is replaced due to damage or the like, and even when the mirror (2) is removed, the lead-in wiring (4) is directly connected to the terminal box (7).
You can leave it connected to and no electrical work is required. Therefore, the replacement of the mirror (2) itself can be performed by an independent construction independent of electrical construction.

Further, even when the anti-fog mirror is produced by factory production, since the mirror (2) and the heater unit (3) are produced as separate bodies, the shape and size of the mirror (2) to be installed, etc. Is removed, and the range of selection is expanded. For example, it is possible to attach and replace an appropriate one according to the preference. <a>, <b> and <c> of FIG.
FIG. 6 is a process sectional view of an essential part showing an example of a fixing structure of a mirror and a heater unit on a mounting frame, respectively.

For example, as shown in FIG. 3A, the contact member (8) provided on the fixed portion of the rear surface of the heater unit (3) to the installation frame (1) may be formed of an elastic material. it can. Further, this contact member (8) can be provided on the edge of the back surface of the heat equalizing plate (6). Fixing holes (11) for fixing the heater unit (3) are formed in the contact member (8) and the heat equalizing plate (6) so as to penetrate from the front surface to the back surface.

Installation of heater unit (3) Frame (1)
When fixing on top, the mirror holding fixture (1
0) is fixed to a predetermined site on the installation frame (1), and the heater unit (3) is arranged. Then, FIG.
As shown in <b>, fixing members (12) such as screws and nails
Is inserted into the fixing hole (11) and is joined to the installation frame (1) by screwing, driving, etc. to fix the heater unit (3).

After this, the mirror (2) is attached to the mirror holding fixture (1
0) and the heater unit (3). At this time, the rear surface of the mirror (2) is brought into contact with the heat equalizing plate (6) of the heater unit (3) and is pressed backward. Then, since the contact member (8) has elasticity, it can be easily compressed, and the mirror (2) can be fitted therein.

When the mirror (2) is attached, as shown in FIG. 3C, the contact member (8) moves the heat equalizing plate (6) to the mirror (2) due to its elastic repulsive force. Press on the back of the. In this case, a gap (13) may be formed between the fixing member (12) and the heat equalizing plate (6). In this way, the heater unit (3) is in close contact with the back surface of the mirror (2). Effective and uniform heating of the mirror (2) by the heater unit (3) is possible. At the same time, the airtightness between the mirror (2) and the heater unit (3) is secured, and moisture on the back surface of the heater unit (3),
Water droplets are prevented from entering, and it is possible to prevent accidents such as electric leakage and electric shock at the electrical connection part. For example, good electrical safety can be ensured only by construction from inside the bathroom.

Regarding the position where the contact member (8) is arranged, for example, when the heat equalizing plate (6) has a rectangular shape as shown in FIG. It can be provided at each location. Alternatively, as illustrated in FIG. 5, it is also possible to provide the heat equalizing plate (6) on the entire circumference of the rear edge portion. In this case, the fixing holes (11) can be provided at the four corners of the edge.

FIG. 6 is a sectional view of a main part showing a preferred example of the heater unit. For example, in the example shown in FIG. 6, the planar heater (5) provided in the heater unit (3) has a hard insulating sheet layer (14) on the front and back sides.
It has a laminated structure in which an electric heater circuit layer (16) is sandwiched between (15). Such a sheet heater (5) is adhered to the back surface of the heat equalizing plate (6) via the adhesive layer (17).

Further, in this heater unit (3), the planar heater (5) is airtightly coated on its back surface with a coating layer (18) made of a soft and elastic electric insulating material. By doing so, the moisture resistance on the back surface of the planar heater (5) is further improved. Also,
Even if a sharp protrusion accidentally contacts the planar heater (5) in the process of construction and a temporary insulation breakdown or a penetration scratch is formed, the coating layer has the coating layer (18) only by removing the protrusion. Soft elasticity restores this and restores electrical insulation.

The coating layer (18) can be formed integrally with the adhesion member (8). This integral molding is shown in FIG.
Also, it is applicable to any of the contact members (8) illustrated in FIG. FIG. 7 is a sectional view of an essential part showing another preferable example of the heater unit. As shown in FIG. 7 <a>, the direct connection terminal box (7) can be integrally formed on the back surface of the planar heater (5) of the heater unit (3). By doing this, the wiring work is performed as shown in FIG.
As shown in FIG. 5, it is only necessary to insert the lead-in wiring (4) into the direct connection terminal box (7), which is effective in saving electric work.

FIG. 8 is a cross-sectional view of an essential part showing another preferable example of the heater unit. In this example, FIG.
As shown in <a>, the direct connection terminal box (7) is hermetically covered with the back surface of the planar heater (5) by a coating layer (19) formed of a soft and elastic electric insulating material. . In this case, as shown in FIG.
At the time of connection, the covering layer (19) is pierced and penetrated, and the lead-in wiring (4) is inserted into the direct connection terminal box (7). By doing so, the waterproofness of the direct connection terminal box (7) is ensured even in the connected state, and the reliability of electrical safety is significantly improved.

Of course, the present invention is not limited to the above examples. It goes without saying that various aspects are possible in details such as the configuration, structure, and shape of the mirror, the planar heater, and the installation frame.

[0025]

As described in detail above, according to the present invention, attachment and replacement of the mirror itself is independent of electrical work, and independent work is possible. The range of choices such as the shape and size of the mirror to be installed expands.

[Brief description of drawings]

FIG. 1 is an exploded sectional view showing an embodiment of an anti-fog mirror of the present invention.

2A, 2B, and 2C are process cross-sectional views showing the procedure of constructing the anti-fog mirror illustrated in FIG. 1 along the process thereof.

3A, 3B, and 3C are cross-sectional views of a main part process showing an example of a fixing structure of a mirror and a heater unit on an installation frame.

FIG. 4 is a perspective view showing an example of disposition of a contact member on a heater unit.

FIG. 5 is a perspective view showing another example of the arrangement of the contact member on the heater unit.

FIG. 6 is a sectional view of an essential part showing a preferred example of a heater unit.

7A and 7B are main-portion cross-sectional views each showing another preferable example of the heater unit.

8A and 8B are cross-sectional views of a main part showing another preferable example of the heater unit.

FIG. 9 is a perspective view conceptually showing mirror installation in a bathroom.

10 (a) and 10 (b) are cross-sectional views showing a conventional anti-fog mirror and its construction, respectively.

FIG. 11 is a sectional view showing a construction state of a conventional anti-fog mirror.

[Explanation of symbols]

 1 Installation frame 2 Mirror 3 Heater unit 4 Lead-in wiring 5 Planar heater 6 Uniform plate 7 Direct connection terminal box 8 Adhesive member 9 Notch 10 Mirror holding fixture 11 Fixing hole 12 Fixing member 13 Gap 14, 15 Hard insulating sheet layer 16 Electric heater circuit layer 17 Adhesive layer 18, 19 Coating layer

Claims (7)

[Claims] 1. A heater unit including a mirror and a sheet heater is provided as a separate body, and the mirror and the heater unit are fixed on the installation frame while the heater unit is in contact with the rear surface of the mirror. An anti-fog mirror characterized by being integrated. 2. The anti-fog mirror according to claim 1, wherein an elastic contact member is provided at a fixed portion of the rear surface of the heater unit to the installation frame, and the elastic repulsive force of the adhesive member causes the heater unit to contact the rear surface of the mirror. 3. The anti-fog mirror according to claim 2, wherein the contact member is provided on the entire periphery of the edge of the rear surface of the heater unit. 4. The anti-fog mirror according to claim 1, wherein a direct connection terminal box is integrally formed on the back surface of the heater unit. 5. The anti-fog mirror according to claim 1, wherein the sheet heater is airtightly covered with a soft and elastic electric insulating material. 6. The electrical insulating material according to claim 5, wherein:
An anti-fog mirror integrally formed with the contact member described above. 7. The anti-fog mirror according to claim 4, wherein the direct connection terminal box is airtightly covered with a soft and elastic electric insulating material.